More beware of Google stuff:
KSTP also reports that during the period that HealthCare.gov was hosted by servers owned by Google, the tech giant appeared to be capturing MAC addresses—reporter Nick Winkler characterizes them as “computer fingerprints”—which can identify individual computers.
“It seems weird to me,” Lanterman told KSTP. “I’m a little bit troubled by it. It’s not something that would ordinarily be collected, so someone had to make a decision to collect it.”
Google has been unwilling to speak with KSTP about the collection of MAC addresses.